Non-circular type cross-sectional valve spring and its formation method of cross-section,申请号KR20090099560-传众专利搜索

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发明名称	Non-circular type cross-sectional valve spring and its formation method of cross-section
摘要
申请公布号	KR101087917(B1)	申请公布日期	2011.11.30
申请号	KR20090099560	申请日期	2009.10.20
申请人		发明人
分类号	F01L3/10;F01L3/20	主分类号	F01L3/10
代理机构		代理人
主权项
地址

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